Use this calculator to work out the approximate monthly repayments you will need to make on a personal loan or mortgage. Free Loan Calculator for your website. To use Loan Calculator on your site, please put shortcode [loancalculator] in any page. You can change a rate of interest from setting page (default 12.50%). You can change a heading of block from setting page (default Loan Calculator). You can change a file charges from setting page (default 325$).